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Species: Neivamyrmex opacithorax   (Emery, 1894) 

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Current Valid Name:

Taxonomic History (provided by Barry Bolton, 2022)

Eciton (Acamatus) californicum subsp. opacithorax Emery, 1894d PDF: 184 (diagnosis in key) (w.) U.S.A. (Missouri). Nearctic. Primary type information: Type-material: syntype workers (number not stated). Type-locality: U.S.A.: Missouri, Ripley County, Doniphan (Pergande). Type-depositories: MCZC, MHNG, MSNG, USNM. AntCat AntWiki HOL

Taxonomic history

Wheeler & Long, 1901 PDF: 163, 173 (m.q., respectively); Wheeler & Wheeler, 1984a PDF: 273 (l.)
Combination in Eciton (Neivamyrmex): Smith, 1942c PDF: 555.
Combination in Neivamyrmex: Borgmeier, 1953 PDF: 5.
Subspecies of Neivamyrmex californicus: Emery, 1895d PDF: 259 (description); Pergande, 1896 PDF: 874.
Status as species: Emery, 1900e: 186; Wheeler & Long, 1901 PDF: 163; Wheeler, 1904f PDF: 300; Wheeler, 1908h PDF: 411; Emery, 1910b PDF: 25; Wheeler, 1910a PDF: 562; Wheeler, 1913d PDF: 113; Smith, 1930a PDF: 2; Wheeler, 1932a PDF: 2; Smith, 1938b PDF: 158; Smith, 1942c PDF: 555 (redescription); Buren, 1944a PDF: 280; Creighton, 1950a PDF: 74; Smith, 1951c PDF: 781; Cole, 1953d: 84; Borgmeier, 1955 PDF: 502 (redescription); Smith, 1958c PDF: 109; Carter, 1962a PDF: 6 (in list); Smith, 1967a PDF: 345; Watkins, 1971 PDF: 94 (in key); Kempf, 1972b PDF: 157; Watkins, 1972 PDF: 349 (in key); Hunt & Snelling, 1975 PDF: 21; Watkins, 1976 PDF: 16 (in key); Smith, 1979: 1332; Watkins, 1982 PDF: 211 (in key); Watkins, 1985 PDF: 482 (in key); Wheeler & Wheeler, 1986g PDF: 19 (in key); MacKay et al., 1988 PDF: 87; Deyrup et al., 1989 PDF: 94; Wheeler & Wheeler, 1990a PDF: 461; Bolton, 1995b: 290; Ward, 1999a PDF: 90 (in key); Mackay & Mackay, 2002 PDF: 62; Deyrup, 2003 PDF: 45; MacGown & Forster, 2005 PDF: 67; Ward, 2005 PDF: 62; Snelling & Snelling, 2007 PDF: 487; Branstetter & Sáenz, 2012 PDF: 254; Deyrup, 2017: 38.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Costa Rica, United States
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Nearctic, Neotropical

Distribution Notes:

collected from the Chiricahua Mtns, Cochise Co.


Habitat: Open, upland forest and woodlands, savannas, prairies, also parks and spacious campuses.

Natural History: Also relatively common and well-known, the habits of N. opacithorax are quite similar to those of N. nigrescens. Males are bicolored, black with a reddish-brown gaster, and may be seen flying on calm, cool, sunny, late summer or early fall days.



Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Neivamyrmex opacithorax   Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: -1, (download) -1 21008
Neivamyrmex opacithorax   Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550: 486-487, (download) 486-487 21290

Specimen Habitat Summary

Found most commonly in these habitats: 2 times found in oak pine juniper woodland, 1 times found in grazed creosote desert, 1 times found in pine-oak forest, 2 times found in swamp forest, 1 times found in Chihuahuan desert, 1 times found in old sawdust amid slabs, north side of pile, 1 times found in Desert canyon forest, 1 times found in Dry Palmetto woods, 1 times found in Ponderosa Pine for. 50' tall. Dry creekbed w / shrubby lonicera + Robinia unders, 1 times found in Flatwoods, ...

Found most commonly in these microhabitats: 3 times under stone, 1 times raiding column, 2 times under rock, adjacent to old stump, 2 times sample from tree base, 1 times raiding columns, 1 times in dead wood below ground, 1 times Foraging under rock in partial shade. Sandy Soil. Dense shrubby cover <1m. tall., 1 times ex abandoned fire ant mound, 1 times colony in soil, 1 times under rock, 1 times old sawdust amid slabs, north side of pile, ...

Collected most commonly using these methods: 3 times search, 3 times direct collection, 2 times Berlese, 1 times general collecting, 1 times Search, subterranean raid, 1 times Malaise trap.

Elevations: collected from 6 - 1960 meters, 1416 meters average

Collect Date Range: collected between 1891-07-01 00:00:00.0 and 2019-05-31 00:00:00.0

Type specimens: syntype of Eciton californicum opacithorax: casent0903735

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